Yamaha YZF-R125 Service Manual: Checking the rear brake hose

1. Check:

  • Brake hoses "1" Cracks/damage/wear 
    Replace.

2. Check:

  • Brake hose holder "2" Loose connection Tighten the
    holder bolt.

    Loose or open holder Fasten
    properly.

Checking the rear brake hose


3. Hold the vehicle upright and apply the rear brake several times.

4. Check:

Brake hoses Brake fluid leakage Replace the
damaged hose.

Refer to "REAR BRAKE" on page 4-28.

    Checking the front brake hose
    1. Check: Brake hose "1" Cracks/damage/wear  Replace. 2. Check: Brake hose holder "2" Loose connection Tighten the holder bolt. 3. Hold the vehicle upright and apply ...

    Bleeding the hydraulic brake system
    WARNINGBleed the hydraulic brake system whenever: the system is disassembled. a brake hose is loosened, disconnected or replaced. the brake fluid level is very low. brak ...

    Other materials:

    Electrical components
    1. Main switch 2. Clutch switch 3. Front brake light switch 4. Ignition coil 5. Throttle body sensor assembly (intake air pressure sensor, intake air temperature sensor, throttle position sensor) 6. FID (fast idle solenoid) 7. Rectifier/regulator 8. Lean angle sensor 9. Starting circui ...

    Checking the horn
    1. Check: Horn resistance Out of specification Replace. a. Disconnect the horn connectors from the horn terminals. b. Connect the pocket tester ( × 1) to the horn terminals. Positive tester probe horn terminal "1" Negative tester probe horn terminal "2" c. Measure t ...

    Troubleshooting
    The starter motor fails to turn. NOTE: Before troubleshooting, remove the following part(s): 1. Seats 2. Fuel tank 3. Left lower side cowling 4. Left upper side cowling ...

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